peters



(No Model.) 2 Sheety-Sheet 1. R. B. LANE. Machine for Making Paper Pulpfrom Wood.

Patented Oct. 12,1880.

Inv'e 7113M N. PEIER$. FHOTD-LITHOGR (Ho,-Model.)- 2 Sheets-Sheet 2.

R. B. LANE.

- Machin for Making Paper Pulp from Wood.

No. 233,105. Patented Oct. 12,1880.

Wm asse 0 I In wanker UN TE STATES PATENT OFFICE.

RUFUS B. LANE, OF STOCKTON, CALIFORNIA.

MACHINE FOR MAKING PAPER-PULP FROM WOOD.

SPECIFICATION forming part of Letters Patent No. 233,105, dated October12, 1880.

Application filed May 3, 1880.

To all whom it may concern:

Be it known that I, RUFUS B. LANE, of Stockton, county ofSan Joaquin,and State of California, have invented an Improved Machine for MakingPaper-Pulp from WVood and Ihereby declare the following to be a full,clear,

and exact description thereof.

My invention relates to an improved machine for making a pulp fromwooden blocks which can be used for paper-making; and it consists in theemployment of a series of hardmetal pins, which are placed in rows insuch a manner that two or more rows will make a continuous cut. The pinsproject from a surface or groove which is depressed below the generallevel of the disk or cylinder which carries them, said pins beiu gadapted to scrape off the fibers of the wood in small particles orpulp,while the depression allows the pulp to be carried away from thecutting-face of the pins as fast as produced. A suitable frame or 1guides hold the wooden blocks, and a scraper behind each set of pinscleans the blocks of clinging fibers, so that the solid wood will beclear to be operated upon by the next set of pins'. The disk or cylinderrevolves in a chamber containing water, by which the pulp is carried 0E,and from. this chamber the pulp may be removed through the properopenings. Referring to the accompanying drawings for a more completeexplanation of my invention, Figure 1. is a view of my machine. Fig. 2is a vertical sectional elevation, showing the blocks in position. Fig.3 is an enlarged view of the disk. Fig. 4 is an edge view of a portionof the same.

In the present case I have shown my invention as applied to a disk, A,which is mounted upon the upper end of a vertical shaft, B, driven bythe belt-pulley C, so that the disk revolves in a horizontal plane. Theupper surface of this disk has channels D cut from near the center tothe circumference, the bottom of these channels being below the level ofthe disk-surface, and pins E are secured in these channels in rows,which so alternate with each other that when the disk is rotated theirupper ends will sweep over the whole ,surface of anything brought intocontact with them, thus making a continuous out. These pins are hardenedsufficiently, and their up- (No model.)

per ends are flush with or a little above the surface of the disk,according to the texture of the pulp required.

Behind the pins, at the edge of each channel, is a scraper, F, whichprevents the clingin g fibers from remaining attached to the block, andthus preventing the block from coming in contact with the next set ofpins. The channels are of sufficient depth to receive the pulp as it isformed, and it is thus removed from the cutting-faces of the pins. It isthen carried out of the depression by water, which may be introducedthrough a pipe at the center of the disk. The disk revolves within asurrounding chamber, G, of slightly greater depth than that of the disk,and this chamber receives the pulp asit is discharged from thedepressions or grooves. From the chamber it is discharged through asuitable opening or openings, H.

The blocks of wood from which the pulp is made are held in guidesI,which form aframe supported above the disk, as shown.

Any pressure may be employed to keep the blocks in contact with thedisk, which is revolved at a high speed, and the projecting minutefibers and form a pulp.

It will be seen that the channels may also be cut in the face of acylinder, and provided with pins and scrapers in a similar manner tothose in the disk, and the cylinder may be revolved in a water-chamber.The blocks of wood are pressed against the cylinder in the same manneras with the disk and with a similar result.

The groove or channel with independent knives or pins is of the greatestimportance, as it prevents the clogging which would otherwise takeplace. A cylinder with grooves across its face and having one edge whichwill cut will not do the work, as each groove will become clogged orfilled with the wood, and becomes useless.

The channel or groove must be of sufficient width and depth and the pinsor scrapers so placed, that the cutting face or edge will be cleared asfast as the pulp is formed.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

'pins will remove the substance of the block in 1. In a wmnhgrimlingmachine, the rerolrthe scrapers F, substantially as and for the :0 ingdisk or surface A, having channels 1) purpose herein described. formedbelow said surface, and provided with In witness whereof I have hereuntoset my pins E placed in alternate rows, said pins acthand.

5 iug to cut awayan opposing surface while the RUFUS 1 LANE.

resulting pulp is carried 01f by the channel, substantially as hereindescribed.

2. The revolving disk or surface A, with its channels I) and pins 1'],in combination with Witnesses:

S. II. NOURSE, FRANK A. BROOKS.

